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MTD
Gas Snowblower

Model # 31AS6AED799 Official MTD gas snow thrower

Here are the diagrams and repair parts for Official MTD 31AS6AED799 gas snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 305 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
#8

Auger & housing/impeller diagram

Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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Snowblower Auger Clutch Cable (replaces 946-04230a) 946-04230B
#25

Auger & housing/impeller diagram

Snowblower auger clutch cable (replaces 946-04230a)

Part #946-04230B

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Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

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Snowblower Auger Drive Belt, 1/2 X 35-1/4-in 954-04050A
#63

Engine/drive shaft diagram

Snowblower auger drive belt, 1/2 x 35-1/4-in

Part #954-04050A

Replaced by #256963

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Manufacturer substitution
This part replaces 954-04050A. Substitute parts can look different from the original.
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$32.00 | 
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Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

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Lawn & Garden Equipment Belt 954-04260
#64

Engine/drive shaft diagram

Lawn & garden equipment belt

Part #954-04260

Replaced by #490-501-Y005

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Manufacturer substitution
This part replaces 954-04260. Substitute parts can look different from the original.
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Skid Shoe 784-5580
#24

Auger & housing/impeller diagram

Skid shoe

Part #784-5580

Replaced by #784-5580-0637

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Manufacturer substitution
This part replaces 784-5580. Substitute parts can look different from the original.
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Yard-man Snowblower Spring 732-04460
#11

Auger & housing/impeller diagram

Yard-man snowblower spring

Part #732-04460

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Symptoms for gas snowblowers

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How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

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Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

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Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

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Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

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Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

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Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

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Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

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Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

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Repair guides for gas snowblowers

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How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

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Repair difficulty
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 15 minutes or less
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How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

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 15 minutes or less
How to replace a snowblower shave plate

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Effective articles & videos to help repair your snowblowers

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How to make your snowblower last longer

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